He is right, people may be testing positive just because of dead virus fragments, but to say they have fully recovered there must be no virus alive in their bod

He is right, people may be testing positive just because of dead virus fragments, but to say they have fully recovered there must be no virus alive in their bodies - lack of symptoms may suggest it, then having antibodies may guarantee that eventually.. .. assuming the virus can not hide (and be able to leave) where they can't penetrate - like in the eye ? .. and with weak immune system the outcome may be (how?)long undecided as the antibodies are not being able to fight the virus fast enough to finish it definitely?